gecko-dev/dom/html/HTMLHRElement.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/HTMLHRElement.h"
#include "mozilla/dom/HTMLHRElementBinding.h"
NS_IMPL_NS_NEW_HTML_ELEMENT(HR)
namespace mozilla {
namespace dom {
HTMLHRElement::HTMLHRElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
: nsGenericHTMLElement(aNodeInfo)
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{
}
HTMLHRElement::~HTMLHRElement()
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{
}
NS_IMPL_ISUPPORTS_INHERITED(HTMLHRElement, nsGenericHTMLElement,
nsIDOMHTMLHRElement)
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NS_IMPL_ELEMENT_CLONE(HTMLHRElement)
NS_IMPL_STRING_ATTR(HTMLHRElement, Align, align)
NS_IMPL_BOOL_ATTR(HTMLHRElement, NoShade, noshade)
NS_IMPL_STRING_ATTR(HTMLHRElement, Size, size)
NS_IMPL_STRING_ATTR(HTMLHRElement, Width, width)
NS_IMPL_STRING_ATTR(HTMLHRElement, Color, color)
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bool
HTMLHRElement::ParseAttribute(int32_t aNamespaceID,
nsIAtom* aAttribute,
const nsAString& aValue,
nsAttrValue& aResult)
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{
static const nsAttrValue::EnumTable kAlignTable[] = {
{ "left", NS_STYLE_TEXT_ALIGN_LEFT },
{ "right", NS_STYLE_TEXT_ALIGN_RIGHT },
{ "center", NS_STYLE_TEXT_ALIGN_CENTER },
{ 0 }
};
if (aNamespaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::width) {
return aResult.ParseSpecialIntValue(aValue);
}
if (aAttribute == nsGkAtoms::size) {
return aResult.ParseIntWithBounds(aValue, 1, 1000);
}
if (aAttribute == nsGkAtoms::align) {
return aResult.ParseEnumValue(aValue, kAlignTable, false);
}
if (aAttribute == nsGkAtoms::color) {
return aResult.ParseColor(aValue);
}
}
return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
aResult);
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}
void
HTMLHRElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
nsRuleData* aData)
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{
bool noshade = false;
const nsAttrValue* colorValue = aAttributes->GetAttr(nsGkAtoms::color);
nscolor color;
bool colorIsSet = colorValue && colorValue->GetColorValue(color);
if (aData->mSIDs & (NS_STYLE_INHERIT_BIT(Position) |
NS_STYLE_INHERIT_BIT(Border))) {
if (colorIsSet) {
noshade = true;
} else {
noshade = !!aAttributes->GetAttr(nsGkAtoms::noshade);
}
}
if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Margin)) {
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// align: enum
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::align);
if (value && value->Type() == nsAttrValue::eEnum) {
// Map align attribute into auto side margins
nsCSSValue* marginLeft = aData->ValueForMarginLeftValue();
nsCSSValue* marginRight = aData->ValueForMarginRightValue();
switch (value->GetEnumValue()) {
case NS_STYLE_TEXT_ALIGN_LEFT:
if (marginLeft->GetUnit() == eCSSUnit_Null)
marginLeft->SetFloatValue(0.0f, eCSSUnit_Pixel);
if (marginRight->GetUnit() == eCSSUnit_Null)
marginRight->SetAutoValue();
break;
case NS_STYLE_TEXT_ALIGN_RIGHT:
if (marginLeft->GetUnit() == eCSSUnit_Null)
marginLeft->SetAutoValue();
if (marginRight->GetUnit() == eCSSUnit_Null)
marginRight->SetFloatValue(0.0f, eCSSUnit_Pixel);
break;
case NS_STYLE_TEXT_ALIGN_CENTER:
if (marginLeft->GetUnit() == eCSSUnit_Null)
marginLeft->SetAutoValue();
if (marginRight->GetUnit() == eCSSUnit_Null)
marginRight->SetAutoValue();
break;
}
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}
}
if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Position)) {
// width: integer, percent
nsCSSValue* width = aData->ValueForWidth();
if (width->GetUnit() == eCSSUnit_Null) {
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::width);
if (value && value->Type() == nsAttrValue::eInteger) {
width->SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel);
} else if (value && value->Type() == nsAttrValue::ePercent) {
width->SetPercentValue(value->GetPercentValue());
}
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}
nsCSSValue* height = aData->ValueForHeight();
if (height->GetUnit() == eCSSUnit_Null) {
// size: integer
if (noshade) {
// noshade case: size is set using the border
height->SetAutoValue();
} else {
// normal case
// the height includes the top and bottom borders that are initially 1px.
// for size=1, html.css has a special case rule that makes this work by
// removing all but the top border.
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::size);
if (value && value->Type() == nsAttrValue::eInteger) {
height->SetFloatValue((float)value->GetIntegerValue(), eCSSUnit_Pixel);
} // else use default value from html.css
}
}
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}
if ((aData->mSIDs & NS_STYLE_INHERIT_BIT(Border)) && noshade) { // if not noshade, border styles are dealt with by html.css
// size: integer
// if a size is set, use half of it per side, otherwise, use 1px per side
float sizePerSide;
bool allSides = true;
const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::size);
if (value && value->Type() == nsAttrValue::eInteger) {
sizePerSide = (float)value->GetIntegerValue() / 2.0f;
if (sizePerSide < 1.0f) {
// XXX When the pixel bug is fixed, all the special casing for
// subpixel borders should be removed.
// In the meantime, this makes http://www.microsoft.com/ look right.
sizePerSide = 1.0f;
allSides = false;
}
} else {
sizePerSide = 1.0f; // default to a 2px high line
}
nsCSSValue* borderTopWidth = aData->ValueForBorderTopWidth();
if (borderTopWidth->GetUnit() == eCSSUnit_Null) {
borderTopWidth->SetFloatValue(sizePerSide, eCSSUnit_Pixel);
}
if (allSides) {
nsCSSValue* borderRightWidth = aData->ValueForBorderRightWidthValue();
if (borderRightWidth->GetUnit() == eCSSUnit_Null) {
borderRightWidth->SetFloatValue(sizePerSide, eCSSUnit_Pixel);
}
nsCSSValue* borderBottomWidth = aData->ValueForBorderBottomWidth();
if (borderBottomWidth->GetUnit() == eCSSUnit_Null) {
borderBottomWidth->SetFloatValue(sizePerSide, eCSSUnit_Pixel);
}
nsCSSValue* borderLeftWidth = aData->ValueForBorderLeftWidthValue();
if (borderLeftWidth->GetUnit() == eCSSUnit_Null) {
borderLeftWidth->SetFloatValue(sizePerSide, eCSSUnit_Pixel);
}
}
nsCSSValue* borderTopStyle = aData->ValueForBorderTopStyle();
if (borderTopStyle->GetUnit() == eCSSUnit_Null) {
borderTopStyle->SetIntValue(NS_STYLE_BORDER_STYLE_SOLID,
eCSSUnit_Enumerated);
}
if (allSides) {
nsCSSValue* borderRightStyle = aData->ValueForBorderRightStyleValue();
if (borderRightStyle->GetUnit() == eCSSUnit_Null) {
borderRightStyle->SetIntValue(NS_STYLE_BORDER_STYLE_SOLID,
eCSSUnit_Enumerated);
}
nsCSSValue* borderBottomStyle = aData->ValueForBorderBottomStyle();
if (borderBottomStyle->GetUnit() == eCSSUnit_Null) {
borderBottomStyle->SetIntValue(NS_STYLE_BORDER_STYLE_SOLID,
eCSSUnit_Enumerated);
}
nsCSSValue* borderLeftStyle = aData->ValueForBorderLeftStyleValue();
if (borderLeftStyle->GetUnit() == eCSSUnit_Null) {
borderLeftStyle->SetIntValue(NS_STYLE_BORDER_STYLE_SOLID,
eCSSUnit_Enumerated);
}
// If it would be noticeable, set the border radius to
// 10000px on all corners; this triggers the clamping to make
// circular ends. This assumes the <hr> isn't larger than
// that in *both* dimensions.
for (const nsCSSProperty* props =
nsCSSProps::SubpropertyEntryFor(eCSSProperty_border_radius);
*props != eCSSProperty_UNKNOWN; ++props) {
nsCSSValue* dimen = aData->ValueFor(*props);
if (dimen->GetUnit() == eCSSUnit_Null) {
dimen->SetFloatValue(10000.0f, eCSSUnit_Pixel);
}
}
}
}
if (aData->mSIDs & NS_STYLE_INHERIT_BIT(Color)) {
// color: a color
// (we got the color attribute earlier)
nsCSSValue* colorValue = aData->ValueForColor();
if (colorIsSet &&
colorValue->GetUnit() == eCSSUnit_Null &&
aData->mPresContext->UseDocumentColors()) {
colorValue->SetColorValue(color);
}
}
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
}
NS_IMETHODIMP_(bool)
HTMLHRElement::IsAttributeMapped(const nsIAtom* aAttribute) const
{
static const MappedAttributeEntry attributes[] = {
{ &nsGkAtoms::align },
{ &nsGkAtoms::width },
{ &nsGkAtoms::size },
{ &nsGkAtoms::color },
{ &nsGkAtoms::noshade },
{ nullptr },
};
static const MappedAttributeEntry* const map[] = {
attributes,
sCommonAttributeMap,
};
return FindAttributeDependence(aAttribute, map);
}
nsMapRuleToAttributesFunc
HTMLHRElement::GetAttributeMappingFunction() const
{
return &MapAttributesIntoRule;
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}
JSObject*
HTMLHRElement::WrapNode(JSContext* aCx)
{
return HTMLHRElementBinding::Wrap(aCx, this);
}
} // namespace mozilla
} // namespace dom